These are minor characters in the Z Yang books.
Lauren McClain is Z's best friend. She is described as Z's "personal cheerleader," very encouraging towards others, and loves to help others. She does, however, get frustrated when Z gets too focused on her projects and doesn't let anybody help her. She is her middle school's star soccer player, and a member of the Camera Club with Z.
She helps Z with her stop motions by making the sets and props (a talent of hers) and writing scripts such as "The Horrible Homework Hacker."
She has a brother named Thomas and a sister.